Buggy code:
public void incorrectEnclosingInstanceReference ( QualifiedThisReference reference , TypeBinding qualificationType ) { } public void incorrectLocationForEmptyDimension ( ArrayAllocationExpression expression , int index ) { } public void incorrectSwitchType ( Expression expression , TypeBinding testType ) { } public void inheritedMethodReducesVisibility ( SourceTypeBinding type , MethodBinding concreteMethod , MethodBinding [ ] abstractMethods ) { } public void inheritedMethodsHaveIncompatibleReturnTypes ( SourceTypeBinding type , MethodBinding [ ] inheritedMethods , int length ) { } public void initializerMustCompleteNormally ( FieldDeclaration fieldDecl ) { } public void innerTypesCannotDeclareStaticInitializers ( ReferenceBinding innerType , AstNode location ) { } public void interfaceCannotHaveConstructors ( ConstructorDeclaration constructor , CompilationResult result ) { } public void interfaceCannotHaveInitializers ( SourceTypeBinding type , FieldDeclaration fieldDecl ) { } public void invalidBreak ( AstNode location ) { } public void invalidConstructor ( Statement statement , MethodBinding method ) { } public void invalidContinue ( AstNode location ) { } public void invalidEnclosingType ( Expression expression , TypeBinding type , TypeBinding enclosingType ) { } public void invalidExpressionAsStatement ( Expression expression ) { } public void invalidField ( FieldReference fieldRef , TypeBinding searchedType ) { } public void invalidField ( NameReference nameRef , FieldBinding field ) { } public void invalidField ( QualifiedNameReference nameRef , FieldBinding field , int index , TypeBinding searchedType ) { } public void invalidMethod ( MessageSend messageSend , MethodBinding method ) { } public void invalidNullToSynchronize ( Expression expression ) { } public void invalidOperator ( BinaryExpression expression , TypeBinding leftType , TypeBinding rightType ) { } public void invalidOperator ( CompoundAssignment assign , TypeBinding leftType , TypeBinding rightType ) { } public void invalidOperator ( UnaryExpression expression , TypeBinding type ) { } public void invalidSuperclass ( SourceTypeBinding type , TypeReference superclassRef , ReferenceBinding expectedType ) { } public void invalidSuperinterface ( SourceTypeBinding type , TypeReference superinterfaceRef , ReferenceBinding expectedType ) { } public void invalidType ( Expression expression , TypeBinding type ) { } public void invalidTypeReference ( Expression expression ) { } public void invalidTypeToSynchronize ( Expression expression , TypeBinding type ) { } public void invalidUnaryExpression ( Expression expression ) { } public void isClassPathCorrect ( char [ ] [ ] wellKnownTypeName , CompilationUnitDeclaration compUnitDecl ) { } public void maskedExceptionHandler ( ReferenceBinding exceptionType , AstNode location ) { } public void methodNeedingAbstractModifier ( MethodDeclaration methodDecl ) { } public void methodNeedingNoBody ( MethodDeclaration methodDecl ) { } public void methodWithConstructorName ( MethodDeclaration methodDecl ) { } public void missingEnclosingInstanceSpecification ( ReferenceBinding enclosingType , AstNode location ) { } public void missingReturnType ( AbstractMethodDeclaration methodDecl ) { } public void mustDefineDimensionsOrInitializer ( ArrayAllocationExpression expression ) { } public void mustSpecifyPackage ( CompilationUnitDeclaration compUnitDecl ) { } public void mustUseAStaticMethod ( MessageSend messageSend , MethodBinding method ) { } public void nativeMethodsCannotBeStrictfp ( ReferenceBinding type , AbstractMethodDeclaration methodDecl ) { } public void needImplementation ( ) { } public void needToEmulateFieldReadAccess ( FieldBinding field , AstNode location ) { } public void needToEmulateFieldWriteAccess ( FieldBinding field , AstNode location ) { } public void needToEmulateMethodAccess ( MethodBinding method , AstNode location ) { } public void nestedClassCannotDeclareInterface ( TypeDeclaration typeDecl ) { } public void noMoreAvailableSpaceForArgument ( LocalVariableBinding local , AstNode location ) { } public void noMoreAvailableSpaceForLocal ( LocalVariableBinding local , AstNode location ) { } public void notCompatibleTypesError ( EqualExpression expression , TypeBinding leftType , TypeBinding rightType ) { } public void notCompatibleTypesError ( InstanceOfExpression expression , TypeBinding leftType , TypeBinding rightType ) { } public void operatorOnlyValidOnNumericType ( CompoundAssignment assignment , TypeBinding leftType , TypeBinding rightType ) { } public void overridesDeprecatedMethod ( MethodBinding currentMethod , MethodBinding inheritedMethod ) { } public void overridesPackageDefaultMethod ( MethodBinding localMethod , MethodBinding inheritedMethod ) { } public void packageCollidesWithType ( CompilationUnitDeclaration compUnitDecl ) { } public void packageIsNotExpectedPackage ( CompilationUnitDeclaration compUnitDecl ) { <START_BUG> this . handle ( PackageIsNotExpectedPackage , new String [ 0 ] , ( ( compUnitDecl . currentPackage ) == null ? 0 : compUnitDecl . currentPackage . sourceStart ) , ( ( compUnitDecl . currentPackage ) == null ? 0 : compUnitDecl . currentPackage . sourceEnd ) ) ; <END_BUG> } private String parametersAsString ( MethodBinding method ) { } public void parseError ( int startPosition , int endPosition , char [ ] currentTokenSource , String errorTokenName , String [ ] possibleTokens , ReferenceContext context , CompilationResult compilationResult ) { } public void publicClassMustMatchFileName ( CompilationUnitDeclaration compUnitDecl , TypeDeclaration typeDecl ) { } public void recursiveConstructorInvocation ( TypeDeclaration typeDeclaration ) { } public void redefineArgument ( Argument arg ) { } public void redefineLocal ( LocalDeclaration localDecl ) { } public void referenceMustBeArrayTypeAt ( TypeBinding arrayType , ArrayReference arrayRef ) { } public void returnTypeCannotBeVoidArray ( SourceTypeBinding type , MethodDeclaration methodDecl ) { } public void returnTypeProblem ( SourceTypeBinding type , MethodDeclaration methodDecl , TypeBinding expectedType ) { } public void scannerError ( Parser parser , String errorTokenName ) { } public void shouldReturn ( TypeBinding returnType , AstNode location ) { } public void signalNoImplicitStringConversionForCharArrayExpression ( Expression expression ) { } public void staticAndInstanceConflict ( MethodBinding currentMethod , MethodBinding inheritedMethod ) { } public void staticFieldAccessToNonStaticVariable ( FieldReference fieldRef , FieldBinding field ) { } public void staticFieldAccessToNonStaticVariable ( QualifiedNameReference nameRef , FieldBinding field ) { } public void staticFieldAccessToNonStaticVariable ( SingleNameReference nameRef , FieldBinding field ) { } public void staticInheritedMethodConflicts ( SourceTypeBinding type , MethodBinding concreteMethod , MethodBinding [ ] abstractMethods ) { } public void stringConstantIsExceedingUtf8Limit ( AstNode location ) { } public void superclassMustBeAClass ( SourceTypeBinding type , TypeReference superclassRef , ReferenceBinding superType ) { } public void superinterfaceMustBeAnInterface ( SourceTypeBinding type , TypeDeclaration typeDecl , ReferenceBinding superType ) { } public void typeCastError ( CastExpression expression , TypeBinding leftType , TypeBinding rightType ) { } public void typeCollidesWithPackage ( CompilationUnitDeclaration compUnitDecl , TypeDeclaration typeDecl ) { } public void typeMismatchError ( TypeBinding resultType , TypeBinding expectedType , AstNode location ) { } public void typeMismatchErrorActualTypeExpectedType ( Expression expression , TypeBinding constantType , TypeBinding expectedType ) { } public void undefinedLabel ( BranchStatement statement ) { }

Fix:
this . handle ( PackageIsNotExpectedPackage , new String [ ] { CharOperation . toString ( compUnitDecl . compilationResult . compilationUnit . getPackageName ( ) ) } , ( ( compUnitDecl . currentPackage ) == null ? 0 : compUnitDecl . currentPackage . sourceStart ) , ( ( compUnitDecl . currentPackage ) == null ? 0 : compUnitDecl . currentPackage . sourceEnd ) ) ;